
Femtosecond lasers aid frequency standards
fs lasers could help in next-generation optical frequency standards
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fs lasers could help in next-generation optical frequency standards
H1 experiments detects new particle with five quarks but ZEUS cannot see it
Superfluidity has been seen in solid helium-4
Tests of Lorentz symmetry are becoming more and more accurate
"Holy grail two" has been achieved with ultracold gases
Entrepreneurs and academics live in different worlds
Heavy-fermion metal displays two critical points
Important choices have to be made this year
Integrated optical circuits move closer